Stereo-Complex Crystallization of Poly(lactic acid)s in Block-Copolymer Phase Separation
Source abstract
Abstract
Block-copolymer containing a poly(L-lactic acid) (PLLA) segment was blended with pure poly(D-lactic acid) (PDLA) chain in chloroform solution and casted into the dried film. This method could form the stereocomplex (Sc) crystal of PLLA/PDLA within the nanometer-sized phase separation self-assembled by block-copolymer. Differential scanning calorimetry measurements of the prepared and annealed films gave the maximum achievable melting temperature of 245 °C, which was highest among those previously reported for PLA Sc-crystals. Surprisingly, all of added PDLA chains were Sc-crystallized, depending on the blend composition with block-copolymer containing PLLA.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: biodegradable polymer synthesis and properties · Advanced Polymer Synthesis and Characterization · Polymer crystallization and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Chemical Biology, Gunma University, Kiryu, Gunma 376-8515, Japan
References (30)
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